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Apparatus and method for the generation of gradient magnetic fields for high resolution NMR experiments

机译:用于高分辨率NMR实验的梯度磁场产生装置和方法

摘要

A gradient magnetic field generator is provided for generating a spatially varying gradient magnetic field for use with a nuclear magnetic resonance spectroscopy probe having a rotatable sample container. The gradient field generator has a plurality of straight line conductive segments which lie parallel to one another and perpendicular to a plane within which lies a rotation axis about which the sample container rotates. The straight line conductive segments each conduct a current which generates a component of the overall gradient magnetic field. The conductive segments preferably lie in a cylindrical distribution about a stator within which the sample container is rotated. The appropriate currents for the conductive segments may be determined by finding a solution for the Jacobian which defines the magnetic field variations in the three-dimensional space of the stator. Finding an appropriate solution is simplified by presuming the cylindrical distribution of conductive segments and allowing restriction due to the size and shape of the stator, and the physical space between the stator and an inner surface of the probe housing.
机译:提供了一种梯度磁场发生器,用于产生空间变化的梯度磁场,以与具有可旋转样品容器的核磁共振光谱探针一起使用。梯度场发生器具有多个直线导电段,所述多个直线导电段彼此平行并且垂直于一个平面,在该平面内放置有样品容器绕其旋转的旋转轴。直线导电段各自传导电流,该电流产生整个梯度磁场的分量。导电段优选地围绕定子分布在圆柱形分布中,样品容器在该定子中旋转。导电段的适当电流可以通过找到雅可比矩阵的解来确定,该解定义了定子三维空间中的磁场变化。通过假定导电段的圆柱形分布并允许由于定子的尺寸和形状以及定子与探头外壳的内表面之间的物理空间而受到限制,可以简化寻找合适解决方案的过程。

著录项

  • 公开/公告号US5872452A

    专利类型

  • 公开/公告日1999-02-16

    原文格式PDF

  • 申请/专利权人 BRUKER INSTRUMENTS INC.;

    申请/专利号US19970794477

  • 发明设计人 JOEL T. LEWANDOWSKI;DAVID G. CORY;

    申请日1997-02-04

  • 分类号G01V3/00;

  • 国家 US

  • 入库时间 2022-08-22 02:08:43

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